1912 – While campaigning in Milwaukee, Wisconsin, former US President Theodore Roosevelt is shot by saloonkeeper William Schrank. With a fresh flesh wound and the bullet still in him, Roosevelt still delivers his scheduled speech.

1913 - The Senghennydd Colliery disaster kills 439 people in South Wales. It is the UK's worst mining disaster.

1949 – Eleven leaders of the U.S. Communist Party are convicted, after a nine-month trial, of conspiring to advocate the violent overthrow of the U.S. government. Ten defendants are sentenced to 5 years in prison each, and the eleventh to 3 years. The Supreme Court upheld the convictions on June 4, 1951.

1968 – Vietnam War: 27 soldiers are arrested at the Presidio in San Francisco for their peaceful protest of stockade conditions and the Vietnam War. Charged with mutiny, their long prison sentences are later reduced to two years.

2001 – Delta Flight 458 from Atlanta to Newark, New Jersey, is diverted to Charlotte-Douglas International Airport, and passengers are taken off the flight while officials investigate a report of two "Middle Eastern men" making threats in a foreign tongue. It turned out to be two Orthodox Jews who were praying peacefully.